Police in Louisiana say an eight-year-old boy shot a grandmother with her own gun just minutes after he played a violent video game, CNN reports.

Marie Smothers, 87, was watching television in the living room of her home in a Slaughter, La., mobile home when she received a bullet in the back of the head, the report says.

Police said the little boy initially claimed the shooting was an accident but that their investigation revealed he'd been playing Grand Theft Auto IV on a Playstation shortly before the slaying, and cops believe he intentionally shot the woman, the sheriff's department said in a statement to CNN.

The boy has not been named and, because he is under 10, will not face charges.

Authorities didn't reveal the child's relationship to the senior, but a CNN local affiliate said she was his grandmother.